The Effectiveness of a Retrofit Method for Cantilever Slabs Using Reinforced Concrete Beams

A new retrofit method was developed, geared mainly for cantilever rigid-frame viaducts, which involves the installation of RC beams in each of the viaduct's columns to improve cantilever performance against strong wind loads, generated by noise prevention barriers which are higher than before. This paper describes the experiments and FEM analyses conducted to evaluate the effectiveness of this method. Firstly, confirmation was obtained that this method can be used on cantilever viaducts to increase resistance. Secondly verifications were made to ensure that that this method allows cantilevers to support barriers of about 5 m. Finally, a method was proposed which can be used to calculated the allowable bending strength using this method.

• Record URL:
  https://doi.org/10.2219/rtriqr.57.3_191
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00339008
• Authors:
  • NIHEI, Tatsuya
  • KITO, Naoki
  • OKAMOTO, Masaru
• Publication Date: 2016

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 191-198
• Serial:
  • Quarterly Report of RTRI
  • Volume: 57
  • Issue Number: 3
  • Publisher: Railway Technical Research Institute
  • ISSN: 0033-9008
  • EISSN: 1880-1765
  • Serial URL: https://www.jstage.jst.go.jp/browse/rtriqr/-char/en
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Beams; Cantilevers; Design methods; Finite element method; Reinforced concrete; Retrofitting; Slabs; Viaducts
• Subject Areas: Bridges and other structures; Design; Railroads;

Filing Info

• Accession Number: 01615516
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Oct 31 2016 9:09AM